Rosaryville Half Marathon and 10K

ATRA race member


Mar 13, 2022 at 9:00 AM

Rosaryville Half Marathon and 10K

7801 West Marlton Ave.

Upper Marlboro MD, 20772


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Entry Fee $75
(Lowest or Early Registration)

Entry Fee 2 $90
(Highest or Late Registration)

Prize Money: no


  • 10K
  • 13.1M

Type: Trail

Starting Elevation: 170

High Point: 237

Percent of the course on un-paved trails: 100%

First Year of the Event: 2017


Due to overwhelming demand for our EX2 and Fountainhead Off-Road Half Marathon and 10K races, we added the Rosaryville Off-Road Half Marathon and 10K in 2014 and it was an immediate hit. Conveniently located right off the Capital Beltway, Rosaryville State Park in Upper Marlboro, MD offers fun and challenging terrain, that is also beginner-friendly. Not overly technical in nature, this racecourse the perfect for an early-season trail running race.

The racecourse at Rosaryville is beautiful and fun and winds through mixed hardwood forests and fields. The trails are twisty, relatively smooth, relatively flat, and fast. The half marathon course includes the 9-mile perimeter trail, the 2-mile interior trail, and wide-open horse trails. The 10K course includes 5 miles of the perimeter trail and just over one mile of wide-open horse trails.

Course Length: 13.1 Miles OR 10K (actual course distance is 6.4 miles)


No photos available.


Past Event Dates

Held on Mar 13, 2022

Held on Sep 06, 2020

Held on Mar 24, 2019

Held on Mar 25, 2018

Held on Apr 02, 2017

Event Results

View 2018 Results